Sci-Doku

 

December 19, 2006 Sci-Doku Puzzle
Clue: Substance considered by some to be harder than diamonds
ABOUT SCI-DOKU

Sci-Doku is a sudoku puzzle that uses letters instead of numbers, with an added twist: a science-related clue accompanies each puzzle and the answer is spelled out in one row or column of the puzzle.

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